diff --git a/modules/hedgedoc.nix b/modules/hedgedoc.nix
index a8602cc..cba0bb7 100644
--- a/modules/hedgedoc.nix
+++ b/modules/hedgedoc.nix
@@ -20,6 +20,7 @@ in
     hedgedoc = {
       enable = true;
       settings = {
+        allowFreeURL = true;
         port = 3002;
         domain = "${domain}";
         protocolUseSSL = true;